org.apache.hadoop.hive.ql.ppd
Class OpProcFactory.JoinerPPD
java.lang.Object
org.apache.hadoop.hive.ql.ppd.OpProcFactory.DefaultPPD
org.apache.hadoop.hive.ql.ppd.OpProcFactory.JoinerPPD
- All Implemented Interfaces:
- NodeProcessor
- Direct Known Subclasses:
- OpProcFactory.JoinPPD
- Enclosing class:
- OpProcFactory
public static class OpProcFactory.JoinerPPD
- extends OpProcFactory.DefaultPPD
- implements NodeProcessor
Determines predicates for which alias can be pushed to it's parents. See
the comments for getQualifiedAliases function.
OpProcFactory.JoinerPPD
public OpProcFactory.JoinerPPD()
process
public Object process(Node nd,
Stack<Node> stack,
NodeProcessorCtx procCtx,
Object... nodeOutputs)
throws SemanticException
- Description copied from interface:
NodeProcessor
- Generic process for all ops that don't have specific implementations.
- Specified by:
process
in interface NodeProcessor
- Overrides:
process
in class OpProcFactory.DefaultPPD
- Parameters:
nd
- operator to processprocCtx
- operator processor contextnodeOutputs
- A variable argument list of outputs from other nodes in the walk
- Returns:
- Object to be returned by the process call
- Throws:
SemanticException
Copyright © 2014 The Apache Software Foundation. All rights reserved.